Are You Low On Vitamin D?

Although fish, milk and fortified foods can provide you with vitamin D, exposure to sunlight may be the best way to synthesize this important micronutrient. That can be challenging to do during the winter months, when cold weather has you bundled up against the elements. A study published in the Journal of Sports Sciences shows just how important vitamin D can be to active adults.

Sixty one athletes and 30 less active adults had vitamin D levels determined before supplementing with 5,000 IU daily for 8 weeks or receiving a placebo. Before supplementing, 62% of athletes and 73% of non-athletes were deficient in vitamin D. Daily supplementation elevated blood levels, which is important because adequate vitamin D helped athletes run a faster 10 meter race and post higher vertical jumps.

True Strength Moment: Some of the best food sources for vitamin D include salmon, tuna, mackerel, sardines and milk. Fortified foods can also help, but if you want to play at the top of your game year-round a high-potency multivitamin might make the difference.